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https://issues.apache.org/jira/browse/HBASE-2515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12864124#action_12864124
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stack commented on HBASE-2515:
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This indeed looks wrong. How does it manifest itself? You have a log?
> ChangeTableState considers split&&offline regions as being served
> -----------------------------------------------------------------
>
> Key: HBASE-2515
> URL: https://issues.apache.org/jira/browse/HBASE-2515
> Project: Hadoop HBase
> Issue Type: Bug
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Priority: Critical
> Fix For: 0.20.5, 0.21.0
>
>
> A region is considered as being serverd and unserved at the same time in the
> ChangeTableState (and TableOperation) class. This translates to logs like
> this:
> {code}
> 2010-05-04 17:26:01,073 INFO org.apache.hadoop.hbase.master.ServerManager:
> Processing MSG_REPORT_SPLIT_INCLUDES_DAUGHTERS:
> TestTable,0000518811,1273019008135: Daughters;
> TestTable,0000518811,1273019159867, TestTable,0000584541,1273019159867 from
> 10.10.1.177,60020,1273018776034; 1 of 1
> <<disable is called>>
> 2010-05-04 17:26:25,893 DEBUG
> org.apache.hadoop.hbase.master.ChangeTableState: Skipping region REGION =>
> {NAME => 'TestTable,0000518811,1273019008135', STARTKEY => '0000518811',
> ENDKEY => '0000650817',
> ENCODED => 143183187, OFFLINE => true, SPLIT => true, TABLE => {{NAME =>
> 'TestTable', FAMILIES => [{NAME => 'info', VERSIONS => '3', COMPRESSION =>
> 'NONE', TTL => '2147483647', BLOCKSIZE => '65536', IN_MEMORY =>
> 'false', BLOCKCACHE => 'true'}]}} because it is offline and split
> 2010-05-04 17:26:25,902 DEBUG
> org.apache.hadoop.hbase.master.ChangeTableState: Adding region
> TestTable,0000518811,1273019008135 to setClosing list
> 2010-05-04 17:26:27,008 DEBUG
> org.apache.hadoop.hbase.master.ChangeTableState: Skipping region REGION =>
> {NAME => 'TestTable,0000518811,1273019008135', STARTKEY => '0000518811',
> ENDKEY => '0000650817',
> ENCODED => 143183187, OFFLINE => true, SPLIT => true, TABLE => {{NAME =>
> 'TestTable', FAMILIES => [{NAME => 'info', VERSIONS => '3', COMPRESSION =>
> 'NONE', TTL => '2147483647', BLOCKSIZE => '65536', IN_MEMORY =>
> 'false', BLOCKCACHE => 'true'}]}} because it is offline and split
> 2010-05-04 17:26:27,018 DEBUG
> org.apache.hadoop.hbase.master.ChangeTableState: Adding region
> TestTable,0000518811,1273019008135 to setClosing list
> {code}
> The region gets stuck in transition! More details in a comment to come.
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